Proceedings Abstracts of the Twenty-Fourth International Joint Conference on Artificial Intelligence

Quiet: Faster Belief Propagation for Images and Related Applications / 3497
Yasuhiro Fujiwara, Dennis Shasha

Belief propagation over Markov random fields has been successfully used in many AI applications since it yields accurate inference results by iteratively updating messages between nodes. However, its high computation costs are a barrier to practical use. This paper presents an efficient approach to belief propagation. Our approach, Quiet, dynamically detects converged messages to skip unnecessary updates in each iteration while it theoretically guarantees to output the same results as the standard approach used to implement belief propagation. Experiments show that our approach is significantly faster than existing approaches without sacrificing inference quality.